A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Linkages between flow, morphodynamics and vegetation ; Verknüpfungen zwischen Strömung, Morphodynamik und Vegetation
Over the past decades, the significant role of riparian vegetation in enhancing water quality and supporting biological diversity has gained increasing recognition. As a result, recent river management strategies have incorporated vegetation for various purposes, including flood mitigation, soil resistance enhancement, while pursuing ecological improvement in fluvial environments. Riparian areas are typically colonized by a wide variety of vegetation species and types, including woody trees, bushes, and shrubs. The presence of vegetation has a significant impact on the flow field, playing a key role in shaping river morphological evolution. The stems, branches, and leaves of riparian vegetation alter the flow dynamics, modify turbulence patterns, and affect bed shear stress and sediment processes. These vegetation-induced effects are further expected during overbank flows and floods, as the threshold for sediment mobility is often exceeded, resulting in dynamic changes to bedforms, bars, and channels. The combined influences of flow dynamics, sediment transport, and vegetation create a complex interplay within river environments. Understanding these intricate interactions is of utmost importance for accurately modeling the morphological evolution of channels and implementing effective management strategies for river environments. This thesis is based on experimental activities conducted to investigate the flow dynamics and sediment transport characteristics in river environments featuring leafy flexible vegetation and large-scale bedforms. The experimental setup encompasses both mobile-bed and fixed-bed conditions, representing the final morphology of mobile-bed scenarios, enabling a novel analysis of flow characteristics, turbulent fields, and resistance composition in the different conditions. The obtained results highlight the notable influence of leafy flexible vegetation on controlling bedform geometry and sediment transport processes. Surprisingly, contrary to previous studies, the data demonstrate that ...
Linkages between flow, morphodynamics and vegetation ; Verknüpfungen zwischen Strömung, Morphodynamik und Vegetation
Over the past decades, the significant role of riparian vegetation in enhancing water quality and supporting biological diversity has gained increasing recognition. As a result, recent river management strategies have incorporated vegetation for various purposes, including flood mitigation, soil resistance enhancement, while pursuing ecological improvement in fluvial environments. Riparian areas are typically colonized by a wide variety of vegetation species and types, including woody trees, bushes, and shrubs. The presence of vegetation has a significant impact on the flow field, playing a key role in shaping river morphological evolution. The stems, branches, and leaves of riparian vegetation alter the flow dynamics, modify turbulence patterns, and affect bed shear stress and sediment processes. These vegetation-induced effects are further expected during overbank flows and floods, as the threshold for sediment mobility is often exceeded, resulting in dynamic changes to bedforms, bars, and channels. The combined influences of flow dynamics, sediment transport, and vegetation create a complex interplay within river environments. Understanding these intricate interactions is of utmost importance for accurately modeling the morphological evolution of channels and implementing effective management strategies for river environments. This thesis is based on experimental activities conducted to investigate the flow dynamics and sediment transport characteristics in river environments featuring leafy flexible vegetation and large-scale bedforms. The experimental setup encompasses both mobile-bed and fixed-bed conditions, representing the final morphology of mobile-bed scenarios, enabling a novel analysis of flow characteristics, turbulent fields, and resistance composition in the different conditions. The obtained results highlight the notable influence of leafy flexible vegetation on controlling bedform geometry and sediment transport processes. Surprisingly, contrary to previous studies, the data demonstrate that ...
Linkages between flow, morphodynamics and vegetation ; Verknüpfungen zwischen Strömung, Morphodynamik und Vegetation
Artini, Giada (author) / Aberle, Jochen / Solari, Luca
2024-07-01
Theses
Electronic Resource
English
Doktorarbeit , ddc:627 , Flussmorphodynamik -- Flussdünen -- Belaubte flexible Vegetation -- Turbulente kinetische Energie -- Strömungswiderstand -- river morphodynamics -- river dunes -- leafy flexible vegetation -- sediment transport -- Sedimenttransport -- turbulent kinetic energy -- flow resistance
Computational modeling of flow and morphodynamics through rigid-emergent vegetation
| British Library Online Contents | 2015
Computational modeling of flow and morphodynamics through rigid-emergent vegetation
| British Library Online Contents | 2015
| UB Braunschweig | 2017
| HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2017